hi everybody ..i almost done with my first project ..but i had no idea about this things ..

i want to charging any battery with my solar panel and my arduino board,,but i dont know what kind of battery that i have to use, and how the arduino circuit and solar panels that can charge batteries that i use..

Charging batteries is not easy. If you do something wrong, you could end up with a leaking battery or the battery could explode or catch fire.

Li-ion or Li-po batteries require advanced knowlegde, or a special chip.NiMH batteries could be charged. There are examples for that.

So you could start with a few AA NiMH batteries.Read about it here:http://arduino.cc/forum/index.php/topic,12929.0.htmlhttp://arduino.cc/forum/index.php/topic,112426.0.htmlhttp://arduino.cc/forum/index.php/topic,21855.0.htmlhttp://arduino.cc/forum/index.php/topic,23300.0.html

Wikipedia explaines the different charging methods.http://en.wikipedia.org/wiki/Nickel-metal_hydride_battery

Hi krodal thx for your reply.. But i dont unserstand any electricity.. Can u give me the arduino scheme with solar panel and rechargable battery? I use accuplus as a battery and the spec is ..Ni- MH 9v, 150mAh..